The LTE Cleaner application is a completely free and open-source utility for cleaning the data from your Android phone. It is capable of deleting files, folders, and even whole Android installations. It is not only effective in removing junk files but also helps to release your phone's memory.

The application will download a database of the files to be deleted. After that, it will ask you whether you want to delete the selected files. After you press the Delete All or Cancel button, the program will start deleting the files.